Automatic door, window, or gate operating device



March 7, 1933. J CHRISTENSON 1,900,009

AUTOMATIC DOOR, WINDOW, on GATE OPERATING DEVICE File d Dec. 20) 1930 3Sheets-82st l (v) YmIIIIIIIIIIIIIIHH Grim- 74 ATTORNEY March 7, 1933.

J. L. CHRISTENSION AUTOMATIC DOOR, WINDOW, OR GATE OPERATING DEVICEFiled Dec. 20, 1930 5 Sheets-Sheet 2 amvzm'on ATTORNEV March 7, 1933. J.1.. CHRISTENSON 900,0

AUTOMATIC DOOR, WINDOW; OR GATE OPERATING DEVICE Filed Dec. 20, 1930 3Sheets-Sheet 5 W 36 75 J O mvENTdR ATTORNEY Patented Mar. 7, 1933 UNITEDSTATES.

PATENT OFFICE Jon N LUDVIK oHRIsTnnsoN, or EDMONTON, ALBERTA, CANADA,AssIGNonor ONE- HALF T0 EARL M. BOUGHTIN AND 0. WAG-ENIUS, BorneEDMONTON, ALBERTA,

CANADA .A'UTOMATIC'DOOR, WINDQW,- OR GATE OPERATING DEVICE Applicationfiled. December 20, 1930. sen-n No. 503,331.

This invention relates to new and-useful improvementsin operatingdevicesfor sliding doors, windows, gates, etc.,and has for the primary object,the provision of a combined electrical and mechanical operating meanshaving a' remote control, whereby a person may easily. and quicklya'ctuate='the.

same to cause the opening or closingof the door, window or gate asdesired.

Another object of this invention is the pro vision of an automatic meansfor stopping the operating means when the door, window or gate actuatedby the operating means reaches a closed or open position. I

A further object of this invention is the provision of an operatingdevice for sliding doors, windows, gates, etc,, of the above statedcharacter, which will besimp-le, durable and efficient, and which may bemanufactured and sold at acomparatively low cost. i

With these and other objects in View as Will become more apparent as thedescription proceeds, the invention consists in certain novel featuresof construction, combination and arrangement of parts as will behereinafter more fully described and claimed.

For a complete understanding of my invention, referenceis to be had tothe following description and accompanying drawings in which: V

Figure 1 is a front elevation partly in sec-- tion illustrating anoperating device constructed in accordance with myinvention.

Figure 2 is a fragmentary side elevation illustrating a trip carriedbythe door or other movable object for actuating a circuit interrupter.

s Figure 3 is a transverse sectional view taken on the line'33 of Figure1.

Figure 4 is a similar view taken on the line HofFigure-1. V q

. I Figure 5 is a diagrammatic view illu's'trating'the wiring diagram.

' Figure 6 is a fragmentary sectional view drawn on an enlarged scaleillustrating the reversing means. I I y Figure '1 is a transversesectional view taken on the line 7 7 of Figure 6. it

My invention is applicable to sliding closures such as doors, windows,gates, etc., and

to give a clearundersta nding as to the con struction and operation ofmy device, I have elected to door.

' A'door frame 1 has associated therewith a sliding door 2 mounted foropening and closing the doorway by a sliding movement and is mounted inany conventional manner. Supporting brackets 3 are secured to the doorframe 1 and'are providedwithbearings 4 to rotatably support an operatingshaft 5 which has formed'thereonrightand left hand feed grooves 6 and asshown in Figure 1, the shaft 5 may be of any desired length for thepurpose of operating a number of show the same applied to a slidingdoors and the operating means for such doors are identical inconstruction, therefore reference to one is thoughtsuificient for all.The rlght and left hand feed grooves 6 intersect each other as clearlyshownin Figure 1 and terminate at each end where the grooves in-'tersect with each other.

- A conventional type of over running clutch 7 is secured to the shaft 5and has connected thereto a gear 8 meshingwith a worm gear 9 fixed to ashaftlO ,jour'naled. in suitable brackets 11 carried by the doorframe. 1. An electric motor 12is supportedby the door frame 1 and thedrive sha'ftl3 thereof carrise a worm gear 14 which meshes with a gear15 secured to the shaft 10 whereby the shaft 5 may berotated in onedirection by the motor12. i I p I j A housing 16 is secured to the door2 by a bracket 17 and slidably receives the shaft 5 .and has journaledtherein annular actuating members 18 provided with lugs or projections19 received by the feed grooves 6 of the shaft 5 and said lugs areofsuch size so that they will bridge an intersection of the grooves andthereby always travel in their respective grooves; The actuating members18 surround the shaft 5and have formed on their outer edges flanges 20provided with teeth 21 and the teeth of one of the actuatingmembers y 18are to be engaged by teeth 22 on a reversing'member 23 when the latteris in oneposition and. when in another position the teeth 22thereof areadapted to engage 'theteeth 21 direction. opposite direction engages theteeth 22 of of the other actuating member 18 for reversing the movementof the door. The reversing member 23 is of annular formation mountedupon the actuating members 18 and held against rotation therewith by theforked arm 24 of a shifting lever '25 having a universal mounting withthe housing 16 as shown at 26. Theforlred arms 24 have pin and slotconnections with the reversing mem ber 23 as clearly shown in Figure 6.The reversing member 2.3 has a. neutral position as shown in Figure 6and the movement of the lever in one direction engages the teeth 22 withthe teeth 21 of one ofthe actuating members 18 locking said member 18against rotation and as the lug 19 thereof engages in one of the feedgrooves'6, the rotation of the shaft 5 will cause the door to slide inone A. movement of the lever 25 in an the reversing member 23 with theteeth 21 of the other actuating member 18 and owing to the lug 19thereof being in engagement with the other feed groove of the shaft 5will cause the door to slide in a reverse direction. Stops 26 arecarried by the door frame 1 and located adjacent the limit of movementof the door 2 in either direction for operating the shifting lever 25and the later is of a construction to give the reversing member 23 asnap action when engaged by one of the stops. It is to be understoodthat when the shifting lever 25 engages one of the stops 26 .thereversing member 23 is in mesh with one of the actuating members 18 andduring the movement of the lever 25 the actuating member is moved out ofengagement with said actuating member 18 and into engagement with theother actuating member 18 placing the reversing mechanism in properposition to move'the door in an opposite direction on further rotationof the shaft 5.

Circuit interrupters 27 are located on the door frame 1 and are actuatedby trips 28 carried by the door and the trips are of identicalconstruction except they are mounted on the door reverse to each otherso that the movement of the door in one direction,

. one of the trips actuates one of the circuit 'interrupters and on areverse movement-of the door said trip 28 passes the respective circuitinterrupter without operating the same. This applies to the other tripand respective circuit interrupter when the door moves in a reversedirection. Reference to one of the trips 28 specifically is thought toanswer for both. The trip includes a pivotally mounted plate 29 carryinga curved arm 30 normally urged into engagement with a lug 31 on the doorby a tension spring 32. A dog 331's pivoted to the plate 29 and islimited in movement in one direction by a Lug 34 onthe plate 29 and isnormally urged in engagement with said lug 34 by a tension spring 35.The dog 33 in engagement with the respective interrupter withoutactuating the same. The dog 33 during the reverse movement of the doorwill swing upon its pivot when engaged by the stop without moving thearm 30 of the trip 28 into an active position. i

An electrical source including positive and negative electrical feedlines 37 and 38 are provided and theelectric motor 1-2 has one polethereof connected to the positive feed line 37 by a conductor 39 whilethe negative conductor 38 is connected to onerof the interrupters 27 andsaid interrupter is connected to the other interrupter 27 by a conductor40. The last named interrupter is connected to a contact 41 of amagnetic switch 42 by the conductor 43'. The magnetic.

switch 42 includes a double solenoid 44 which has the core 45thereof-associated with a pivoted circuitclosing arm 46 norm-ally helddisengaged from the contacts 47 and 41 by a spring 48. A conductor 49 isconnected to the other pole of the electric motor 12 and to one of thewindings of the double solenoid 44 and said winding is connected to thecontact 47 by a conductor 50. The other winding of the double solenoid44 is connected to conductors 51 and 52 and the conductor 52 isconnected to the positive feed conductor 37 while the conduct-or 51 isconnected to switches 53 and the latter are of any suitable typepreferably of the push type and are electrically connected to thenegative feed conductor 38 by a conductor 54. It is to be understoodthat the switches 53 may be located at any desired point relative to thedoor or the building and convenient for the operation of the device.

In operation, when desiring to move the door in one direction, or into aposition opposite to that now occupied, a person pushes one of theswitches 53 completing an electric circuit to one of the windings of thedouble solenoid 44 which attracts the arm 46 and bridges the contacts 41and 47 completing the circuit to the electric motor which immediatelyenergizes the other winding of the solenoid maintaining the arm 46 inengagement with the contacts 41 and 47. The motor now in operationrotates the shaft 5 causing the door to-slide towards a positionopposite to the present occupied position and as the door reaches thelimit of its movement, the stop 26 actuates the shifting 1e ver 25re-setting the reversing member 23 and simultaneously one of the trips28 is positioned to actuate one of the interrupters 27 breaking thecircuit to the motor and stopping the rotation of the shaft 5 andconsequently the movement of the door. The interrupters are of a typethat they will auto matically resume an operative or circuit closingposition when disengaged from the trip 8 and only occupy a circuitbreaking position sufliciently long to break the circuit to the motor12, it being understood that when the circuit to the motor 12 is broken.

the arm 46 disengages from the contacts 41 and 47. The device isnowpositioned ready for operation to move the door in a reversedirection and a person presses upon one of the switches 53 again settingthe motor in operation and the door moves in'the reverse direction inthe manner describedwith reference to its movement in the firstdirection.

Cushion springs 55 are mounted on the shaft 5 adjacent the 'ends thereofand are adapted to cushion the movement of the door when reaching thelimit of its movement in either direction and also for retaining thelugs 19 of the actuating members 18 in engagement with their respectivefeed grooves 6.

If at any time it is desired to manually open or close the door 52, thesame may be moved as the over-running clutch 7 is prowided which willpermit manual movement of the door Without causing operation of the dooractuating means.

l/Vhile I have shown and described the preferred embodiment of myinvention, it will be understood that minor changes in construction,combination and arrangement of parts may be made without departing fromthe spirit and. scope of the invention as claimed.

Having thus described the I claim is: r

l. A device of the character set forth including a supporting structureand a slidable closure therefor, a rotatable drive shaft carried by thesupporting structure and having oppositely extending feed grooves, anelectric motor for rotating the shaft and in circuit with anelectricalsource, a housing carried by'the closure andvslidablyreceiving the shaft, actuating members located in the housing andmounted on the shaft for sliding movement relative thereto, lugs on saidmembers and engaging the grooves, a control means carried by the housingand when in one position adapted to lock one of invention what meanswhen the closure reaches the limit of its movement, means in circuitwith the motor to set the latter in operation, and means forinterrupting the circuit to the motor when the closure reaches the limitof its movement.

2. A device of thelcharacter set forth including a supporting structureand a slidable closure therefor, a rotatable drive shaft carried by thesupporting structure and having oppositely extending feed grooves, anelectric motor for rotating the shaft and in circuit with an electricalsource, a housing carried by the closure and slidably receiving theshaft, actuating members mounted on theshaft and lying within thehousing, lugs, on said members and received by the grooves, a shiftingmember associated with the actuating members, a shifting lever connectedto the shifting member and pivotally mounted on the housing, means incircuit with the motor to set the latter in operation, stops carried bythe supporting structure and engaged by the lever when the closurereaches a point adjacent its limit of movement for actuating thereversing member to cause the able closure therefor, a rotatable driveshaft 7 carried by the supporting structure, an electric motor forrotating the shaft and in circuit with an electrical source, a combineddrive and reverse means between the shaft and the closure for moving theclosure from one position to another position by the rotation of theshaft, stops carried by the supporting structure for actuating saidcombined drive and reversing means when the closure reaches a pointadjacent the limit of its movement, electrical interrupters carried bythe supporting structure and in circuit with the motor, remote controlmeans in circuit with the motor for starting the latter in operation,and trips carried by the closure for actuating the interrupters to breakthe circuit tothe motor when the closure reaches the limit of itsmovement.

In testimony whereof I aflix my signature.

JOHN LUDVIK CHRISTENSON.

the actuating members to the housing for causing the door to move in onedirection by the rotation of the shaft and when shifted to anotherposition to lock the other actuating member to the housing for causingthe closure to move in an opposite direction by the rotation of theshaft, stops carried by the supporting structure for actuating said'last

